Examining Spatiotemporal Urbanization Patterns in Kathmandu Valley, Nepal: Remote Sensing and Spatial Metrics Approaches
Examining Spatiotemporal Urbanization Patterns in Kathmandu Valley, Nepal: Remote Sensing and Spatial Metrics Approaches
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DOI：
10.3390/rs1030534
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发表时间：
2009-09
期刊：
影响因子：
--
通讯作者：
R. Thapa;Y. Murayama
中科院分区：
文献类型：
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作者：
R. Thapa;Y. Murayama
本文利用遥感和空间计量技术研究了加德满都河谷城市化的时空格局。这项研究基于33年来从卫星图像汇编的时间序列数据。随着城市边缘和山谷中农村的新发展，自然环境的变化和居民之间新形成的社会经济压力正在出现。流域内呈现出高度动态的城市化空间格局。20世纪60年代和70年代，城市建成区增长缓慢，但自80年代以来增长迅速。城市化进程在流域内形成了碎片化和异质的土地利用组合。然而，城市核心和紧邻边缘地区的再填充式开发过程显示出土地利用斑块之间的邻域距离减小的趋势，以及物理连通性的增加趋势，这表明在未来几十年内同质景观开发的可能性更大。
This paper examines the spatiotemporal pattern of urbanization in Kathmandu Valley using remote sensing and spatial metrics techniques. The study is based on 33-years of time series data compiled from satellite images. Along with new developments within the city fringes and rural villages in the valley, shifts in the natural environment and newly developed socioeconomic strains between residents are emerging. A highly dynamic spatial pattern of urbanization is observed in the valley. Urban built-up areas had a slow trend of growth in the 1960s and 1970s but have grown rapidly since the 1980s. The urbanization process has developed fragmented and heterogeneous land use combinations in the valley. However, the refill type of development process in the city core and immediate fringe areas has shown a decreasing trend in the neighborhood distances between land use patches, and an increasing trend towards physical connectedness, which indicates a higher probability of homogenous landscape development in the upcoming decades.